Home / 340,280.01-510,381.12-90,981.45

Finding the Fourth Proportional to 340,280.01, 510,381.12 and 90,981.45

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Solution

The fourth proportional to 340,280.01, 510,381.12 and 90,981.45 is: 136,461.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,280.01 : 510,381.12 = 90,981.45 : x
  2. Step 2: Convert to fraction form
    340,280.01/510,381.12 = 90,981.45/x
  3. Step 3: Cross multiply
    340,280.01x = 510,381.12 × 90,981.45
  4. Step 4: Simplify right side
    340,280.01x = 46,435,214,350.22
  5. Step 5: Solve for x
    x = 46,435,214,350.22/340,280.01
  6. Step 6: Final answer
    x = 136,461.78

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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.