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Finding the Fourth Proportional to 630,159.90, 945,234.99 and 156,842.07

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Solution

The fourth proportional to 630,159.90, 945,234.99 and 156,842.07 is: 235,261.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,159.90 : 945,234.99 = 156,842.07 : x
  2. Step 2: Convert to fraction form
    630,159.90/945,234.99 = 156,842.07/x
  3. Step 3: Cross multiply
    630,159.90x = 945,234.99 × 156,842.07
  4. Step 4: Simplify right side
    630,159.90x = 148,252,606,957.64
  5. Step 5: Solve for x
    x = 148,252,606,957.64/630,159.90
  6. Step 6: Final answer
    x = 235,261.89

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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.