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Finding the Fourth Proportional to 292,275.13, 403,340.90 and 158,139.13

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Solution

The fourth proportional to 292,275.13, 403,340.90 and 158,139.13 is: 218,232.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,275.13 : 403,340.90 = 158,139.13 : x
  2. Step 2: Convert to fraction form
    292,275.13/403,340.90 = 158,139.13/x
  3. Step 3: Cross multiply
    292,275.13x = 403,340.90 × 158,139.13
  4. Step 4: Simplify right side
    292,275.13x = 63,783,979,019.42
  5. Step 5: Solve for x
    x = 63,783,979,019.42/292,275.13
  6. Step 6: Final answer
    x = 218,232.66

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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.