Home / 315,166.17-434,935.49-171,931.53

Finding the Fourth Proportional to 315,166.17, 434,935.49 and 171,931.53

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Solution

The fourth proportional to 315,166.17, 434,935.49 and 171,931.53 is: 237,268.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,166.17 : 434,935.49 = 171,931.53 : x
  2. Step 2: Convert to fraction form
    315,166.17/434,935.49 = 171,931.53/x
  3. Step 3: Cross multiply
    315,166.17x = 434,935.49 × 171,931.53
  4. Step 4: Simplify right side
    315,166.17x = 74,779,123,387.34
  5. Step 5: Solve for x
    x = 74,779,123,387.34/315,166.17
  6. Step 6: Final answer
    x = 237,268.88

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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.