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Finding the Fourth Proportional to 384,685.52, 530,775.04 and 223,444.76

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Solution

The fourth proportional to 384,685.52, 530,775.04 and 223,444.76 is: 308,300.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,685.52 : 530,775.04 = 223,444.76 : x
  2. Step 2: Convert to fraction form
    384,685.52/530,775.04 = 223,444.76/x
  3. Step 3: Cross multiply
    384,685.52x = 530,775.04 × 223,444.76
  4. Step 4: Simplify right side
    384,685.52x = 118,598,901,426.79
  5. Step 5: Solve for x
    x = 118,598,901,426.79/384,685.52
  6. Step 6: Final answer
    x = 308,300.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.