Home / 257,712.34-355,641.96-144,535.18

Finding the Fourth Proportional to 257,712.34, 355,641.96 and 144,535.18

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Solution

The fourth proportional to 257,712.34, 355,641.96 and 144,535.18 is: 199,457.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,712.34 : 355,641.96 = 144,535.18 : x
  2. Step 2: Convert to fraction form
    257,712.34/355,641.96 = 144,535.18/x
  3. Step 3: Cross multiply
    257,712.34x = 355,641.96 × 144,535.18
  4. Step 4: Simplify right side
    257,712.34x = 51,402,774,704.15
  5. Step 5: Solve for x
    x = 51,402,774,704.15/257,712.34
  6. Step 6: Final answer
    x = 199,457.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.