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Finding the Fourth Proportional to 292,339.13, 403,428.20 and 158,203.13

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Solution

The fourth proportional to 292,339.13, 403,428.20 and 158,203.13 is: 218,320.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,339.13 : 403,428.20 = 158,203.13 : x
  2. Step 2: Convert to fraction form
    292,339.13/403,428.20 = 158,203.13/x
  3. Step 3: Cross multiply
    292,339.13x = 403,428.20 × 158,203.13
  4. Step 4: Simplify right side
    292,339.13x = 63,823,601,162.11
  5. Step 5: Solve for x
    x = 63,823,601,162.11/292,339.13
  6. Step 6: Final answer
    x = 218,320.42

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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.