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Finding the Fourth Proportional to 292,220.10, 438,220.80 and 102,607.20

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Solution

The fourth proportional to 292,220.10, 438,220.80 and 102,607.20 is: 153,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,220.10 : 438,220.80 = 102,607.20 : x
  2. Step 2: Convert to fraction form
    292,220.10/438,220.80 = 102,607.20/x
  3. Step 3: Cross multiply
    292,220.10x = 438,220.80 × 102,607.20
  4. Step 4: Simplify right side
    292,220.10x = 44,964,609,269.76
  5. Step 5: Solve for x
    x = 44,964,609,269.76/292,220.10
  6. Step 6: Final answer
    x = 153,872.40

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1.5x scale

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.