Home / 388,994.05-583,158.21-149,279.95

Finding the Fourth Proportional to 388,994.05, 583,158.21 and 149,279.95

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Solution

The fourth proportional to 388,994.05, 583,158.21 and 149,279.95 is: 223,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,994.05 : 583,158.21 = 149,279.95 : x
  2. Step 2: Convert to fraction form
    388,994.05/583,158.21 = 149,279.95/x
  3. Step 3: Cross multiply
    388,994.05x = 583,158.21 × 149,279.95
  4. Step 4: Simplify right side
    388,994.05x = 87,053,828,430.89
  5. Step 5: Solve for x
    x = 87,053,828,430.89/388,994.05
  6. Step 6: Final answer
    x = 223,792.19

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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.