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Finding the Fourth Proportional to 346,706.20, 520,059.30 and 307,307.80

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Solution

The fourth proportional to 346,706.20, 520,059.30 and 307,307.80 is: 460,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,706.20 : 520,059.30 = 307,307.80 : x
  2. Step 2: Convert to fraction form
    346,706.20/520,059.30 = 307,307.80/x
  3. Step 3: Cross multiply
    346,706.20x = 520,059.30 × 307,307.80
  4. Step 4: Simplify right side
    346,706.20x = 159,818,279,352.54
  5. Step 5: Solve for x
    x = 159,818,279,352.54/346,706.20
  6. Step 6: Final answer
    x = 460,961.70

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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.