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Finding the Fourth Proportional to 207,280.98, 310,920.74 and 57,520.98

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Solution

The fourth proportional to 207,280.98, 310,920.74 and 57,520.98 is: 86,281.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,280.98 : 310,920.74 = 57,520.98 : x
  2. Step 2: Convert to fraction form
    207,280.98/310,920.74 = 57,520.98/x
  3. Step 3: Cross multiply
    207,280.98x = 310,920.74 × 57,520.98
  4. Step 4: Simplify right side
    207,280.98x = 17,884,465,667.13
  5. Step 5: Solve for x
    x = 17,884,465,667.13/207,280.98
  6. Step 6: Final answer
    x = 86,281.27

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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.