Home / 459,117.10-688,675.65-143,670.70

Finding the Fourth Proportional to 459,117.10, 688,675.65 and 143,670.70

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Solution

The fourth proportional to 459,117.10, 688,675.65 and 143,670.70 is: 215,506.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,117.10 : 688,675.65 = 143,670.70 : x
  2. Step 2: Convert to fraction form
    459,117.10/688,675.65 = 143,670.70/x
  3. Step 3: Cross multiply
    459,117.10x = 688,675.65 × 143,670.70
  4. Step 4: Simplify right side
    459,117.10x = 98,942,512,708.46
  5. Step 5: Solve for x
    x = 98,942,512,708.46/459,117.10
  6. Step 6: Final answer
    x = 215,506.05

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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.