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Finding the Fourth Proportional to 612,624.40, 918,560.28 and 238,210.96

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Solution

The fourth proportional to 612,624.40, 918,560.28 and 238,210.96 is: 357,170.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,624.40 : 918,560.28 = 238,210.96 : x
  2. Step 2: Convert to fraction form
    612,624.40/918,560.28 = 238,210.96/x
  3. Step 3: Cross multiply
    612,624.40x = 918,560.28 × 238,210.96
  4. Step 4: Simplify right side
    612,624.40x = 218,811,126,116.67
  5. Step 5: Solve for x
    x = 218,811,126,116.67/612,624.40
  6. Step 6: Final answer
    x = 357,170.11

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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.