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Finding the Fourth Proportional to 347,680.60, 520,916.10 and 160,307.80

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Solution

The fourth proportional to 347,680.60, 520,916.10 and 160,307.80 is: 240,182.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,680.60 : 520,916.10 = 160,307.80 : x
  2. Step 2: Convert to fraction form
    347,680.60/520,916.10 = 160,307.80/x
  3. Step 3: Cross multiply
    347,680.60x = 520,916.10 × 160,307.80
  4. Step 4: Simplify right side
    347,680.60x = 83,506,913,975.58
  5. Step 5: Solve for x
    x = 83,506,913,975.58/347,680.60
  6. Step 6: Final answer
    x = 240,182.84

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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.