Home / 257,607.51-355,480.56-142,875.33

Finding the Fourth Proportional to 257,607.51, 355,480.56 and 142,875.33

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Solution

The fourth proportional to 257,607.51, 355,480.56 and 142,875.33 is: 197,158.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,607.51 : 355,480.56 = 142,875.33 : x
  2. Step 2: Convert to fraction form
    257,607.51/355,480.56 = 142,875.33/x
  3. Step 3: Cross multiply
    257,607.51x = 355,480.56 × 142,875.33
  4. Step 4: Simplify right side
    257,607.51x = 50,789,402,318.58
  5. Step 5: Solve for x
    x = 50,789,402,318.58/257,607.51
  6. Step 6: Final answer
    x = 197,158.08

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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.