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Finding the Fourth Proportional to 292,492.35, 438,683.04 and 142,581.87

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Solution

The fourth proportional to 292,492.35, 438,683.04 and 142,581.87 is: 213,845.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,492.35 : 438,683.04 = 142,581.87 : x
  2. Step 2: Convert to fraction form
    292,492.35/438,683.04 = 142,581.87/x
  3. Step 3: Cross multiply
    292,492.35x = 438,683.04 × 142,581.87
  4. Step 4: Simplify right side
    292,492.35x = 62,548,248,180.48
  5. Step 5: Solve for x
    x = 62,548,248,180.48/292,492.35
  6. Step 6: Final answer
    x = 213,845.76

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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.