Home / 207,279.19-310,984.40-74,156.50

Finding the Fourth Proportional to 207,279.19, 310,984.40 and 74,156.50

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Solution

The fourth proportional to 207,279.19, 310,984.40 and 74,156.50 is: 111,258.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,279.19 : 310,984.40 = 74,156.50 : x
  2. Step 2: Convert to fraction form
    207,279.19/310,984.40 = 74,156.50/x
  3. Step 3: Cross multiply
    207,279.19x = 310,984.40 × 74,156.50
  4. Step 4: Simplify right side
    207,279.19x = 23,061,514,658.60
  5. Step 5: Solve for x
    x = 23,061,514,658.60/207,279.19
  6. Step 6: Final answer
    x = 111,258.22

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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.