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Finding the Fourth Proportional to 240,356.10, 360,424.80 and 128,007.48

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Solution

The fourth proportional to 240,356.10, 360,424.80 and 128,007.48 is: 191,952.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,356.10 : 360,424.80 = 128,007.48 : x
  2. Step 2: Convert to fraction form
    240,356.10/360,424.80 = 128,007.48/x
  3. Step 3: Cross multiply
    240,356.10x = 360,424.80 × 128,007.48
  4. Step 4: Simplify right side
    240,356.10x = 46,137,070,377.50
  5. Step 5: Solve for x
    x = 46,137,070,377.50/240,356.10
  6. Step 6: Final answer
    x = 191,952.98

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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.