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Finding the Fourth Proportional to 207,038.27, 310,630.30 and 101,931.05

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Solution

The fourth proportional to 207,038.27, 310,630.30 and 101,931.05 is: 152,932.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,038.27 : 310,630.30 = 101,931.05 : x
  2. Step 2: Convert to fraction form
    207,038.27/310,630.30 = 101,931.05/x
  3. Step 3: Cross multiply
    207,038.27x = 310,630.30 × 101,931.05
  4. Step 4: Simplify right side
    207,038.27x = 31,662,872,640.82
  5. Step 5: Solve for x
    x = 31,662,872,640.82/207,038.27
  6. Step 6: Final answer
    x = 152,932.46

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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.