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Finding the Fourth Proportional to 317,615.16, 438,303.45 and 174,374.18

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Solution

The fourth proportional to 317,615.16, 438,303.45 and 174,374.18 is: 240,633.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,615.16 : 438,303.45 = 174,374.18 : x
  2. Step 2: Convert to fraction form
    317,615.16/438,303.45 = 174,374.18/x
  3. Step 3: Cross multiply
    317,615.16x = 438,303.45 × 174,374.18
  4. Step 4: Simplify right side
    317,615.16x = 76,428,805,780.68
  5. Step 5: Solve for x
    x = 76,428,805,780.68/317,615.16
  6. Step 6: Final answer
    x = 240,633.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.