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Finding the Fourth Proportional to 608,619.60, 912,929.40 and 159,339.60

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Solution

The fourth proportional to 608,619.60, 912,929.40 and 159,339.60 is: 239,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,619.60 : 912,929.40 = 159,339.60 : x
  2. Step 2: Convert to fraction form
    608,619.60/912,929.40 = 159,339.60/x
  3. Step 3: Cross multiply
    608,619.60x = 912,929.40 × 159,339.60
  4. Step 4: Simplify right side
    608,619.60x = 145,465,805,424.24
  5. Step 5: Solve for x
    x = 145,465,805,424.24/608,619.60
  6. Step 6: Final answer
    x = 239,009.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.