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Finding the Fourth Proportional to 614,309.13, 921,460.05 and 158,900.40

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Solution

The fourth proportional to 614,309.13, 921,460.05 and 158,900.40 is: 238,349.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,309.13 : 921,460.05 = 158,900.40 : x
  2. Step 2: Convert to fraction form
    614,309.13/921,460.05 = 158,900.40/x
  3. Step 3: Cross multiply
    614,309.13x = 921,460.05 × 158,900.40
  4. Step 4: Simplify right side
    614,309.13x = 146,420,370,529.02
  5. Step 5: Solve for x
    x = 146,420,370,529.02/614,309.13
  6. Step 6: Final answer
    x = 238,349.66

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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.