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Finding the Fourth Proportional to 207,280.90, 310,925.02 and 74,256.62

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Solution

The fourth proportional to 207,280.90, 310,925.02 and 74,256.62 is: 111,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,280.90 : 310,925.02 = 74,256.62 : x
  2. Step 2: Convert to fraction form
    207,280.90/310,925.02 = 74,256.62/x
  3. Step 3: Cross multiply
    207,280.90x = 310,925.02 × 74,256.62
  4. Step 4: Simplify right side
    207,280.90x = 23,088,241,058.63
  5. Step 5: Solve for x
    x = 23,088,241,058.63/207,280.90
  6. Step 6: Final answer
    x = 111,386.24

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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.