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Finding the Fourth Proportional to 292,358.08, 438,537.15 and 70,742.08

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Solution

The fourth proportional to 292,358.08, 438,537.15 and 70,742.08 is: 106,113.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,358.08 : 438,537.15 = 70,742.08 : x
  2. Step 2: Convert to fraction form
    292,358.08/438,537.15 = 70,742.08/x
  3. Step 3: Cross multiply
    292,358.08x = 438,537.15 × 70,742.08
  4. Step 4: Simplify right side
    292,358.08x = 31,023,030,148.27
  5. Step 5: Solve for x
    x = 31,023,030,148.27/292,358.08
  6. Step 6: Final answer
    x = 106,113.13

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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.