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Finding the Fourth Proportional to 292,515.40, 438,773.10 and 135,051.40

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Solution

The fourth proportional to 292,515.40, 438,773.10 and 135,051.40 is: 202,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,515.40 : 438,773.10 = 135,051.40 : x
  2. Step 2: Convert to fraction form
    292,515.40/438,773.10 = 135,051.40/x
  3. Step 3: Cross multiply
    292,515.40x = 438,773.10 × 135,051.40
  4. Step 4: Simplify right side
    292,515.40x = 59,256,921,437.34
  5. Step 5: Solve for x
    x = 59,256,921,437.34/292,515.40
  6. Step 6: Final answer
    x = 202,577.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.