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Finding the Fourth Proportional to 256,501.40, 384,752.10 and 242,723.30

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Solution

The fourth proportional to 256,501.40, 384,752.10 and 242,723.30 is: 364,084.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,501.40 : 384,752.10 = 242,723.30 : x
  2. Step 2: Convert to fraction form
    256,501.40/384,752.10 = 242,723.30/x
  3. Step 3: Cross multiply
    256,501.40x = 384,752.10 × 242,723.30
  4. Step 4: Simplify right side
    256,501.40x = 93,388,299,393.93
  5. Step 5: Solve for x
    x = 93,388,299,393.93/256,501.40
  6. Step 6: Final answer
    x = 364,084.95

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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.