Home / 460,341.60-690,512.40-144,895.20

Finding the Fourth Proportional to 460,341.60, 690,512.40 and 144,895.20

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Solution

The fourth proportional to 460,341.60, 690,512.40 and 144,895.20 is: 217,342.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,341.60 : 690,512.40 = 144,895.20 : x
  2. Step 2: Convert to fraction form
    460,341.60/690,512.40 = 144,895.20/x
  3. Step 3: Cross multiply
    460,341.60x = 690,512.40 × 144,895.20
  4. Step 4: Simplify right side
    460,341.60x = 100,051,932,300.48
  5. Step 5: Solve for x
    x = 100,051,932,300.48/460,341.60
  6. Step 6: Final answer
    x = 217,342.80

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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.