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Finding the Fourth Proportional to 292,456.40, 403,591.12 and 158,320.40

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Solution

The fourth proportional to 292,456.40, 403,591.12 and 158,320.40 is: 218,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,456.40 : 403,591.12 = 158,320.40 : x
  2. Step 2: Convert to fraction form
    292,456.40/403,591.12 = 158,320.40/x
  3. Step 3: Cross multiply
    292,456.40x = 403,591.12 × 158,320.40
  4. Step 4: Simplify right side
    292,456.40x = 63,896,707,554.85
  5. Step 5: Solve for x
    x = 63,896,707,554.85/292,456.40
  6. Step 6: Final answer
    x = 218,482.85

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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.