Home / 257,160.27-354,886.51-153,901.21

Finding the Fourth Proportional to 257,160.27, 354,886.51 and 153,901.21

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Solution

The fourth proportional to 257,160.27, 354,886.51 and 153,901.21 is: 212,386.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,160.27 : 354,886.51 = 153,901.21 : x
  2. Step 2: Convert to fraction form
    257,160.27/354,886.51 = 153,901.21/x
  3. Step 3: Cross multiply
    257,160.27x = 354,886.51 × 153,901.21
  4. Step 4: Simplify right side
    257,160.27x = 54,617,464,319.57
  5. Step 5: Solve for x
    x = 54,617,464,319.57/257,160.27
  6. Step 6: Final answer
    x = 212,386.87

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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.