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Finding the Fourth Proportional to 456,510.30, 684,765.45 and 156,964.20

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Solution

The fourth proportional to 456,510.30, 684,765.45 and 156,964.20 is: 235,446.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,510.30 : 684,765.45 = 156,964.20 : x
  2. Step 2: Convert to fraction form
    456,510.30/684,765.45 = 156,964.20/x
  3. Step 3: Cross multiply
    456,510.30x = 684,765.45 × 156,964.20
  4. Step 4: Simplify right side
    456,510.30x = 107,483,661,046.89
  5. Step 5: Solve for x
    x = 107,483,661,046.89/456,510.30
  6. Step 6: Final answer
    x = 235,446.30

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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.