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Finding the Fourth Proportional to 503,785.40, 755,501.70 and 148,705.40

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Solution

The fourth proportional to 503,785.40, 755,501.70 and 148,705.40 is: 223,006.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,785.40 : 755,501.70 = 148,705.40 : x
  2. Step 2: Convert to fraction form
    503,785.40/755,501.70 = 148,705.40/x
  3. Step 3: Cross multiply
    503,785.40x = 755,501.70 × 148,705.40
  4. Step 4: Simplify right side
    503,785.40x = 112,347,182,499.18
  5. Step 5: Solve for x
    x = 112,347,182,499.18/503,785.40
  6. Step 6: Final answer
    x = 223,006.03

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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.