Home / 257,526.31-355,379.75-142,803.13

Finding the Fourth Proportional to 257,526.31, 355,379.75 and 142,803.13

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Solution

The fourth proportional to 257,526.31, 355,379.75 and 142,803.13 is: 197,064.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,526.31 : 355,379.75 = 142,803.13 : x
  2. Step 2: Convert to fraction form
    257,526.31/355,379.75 = 142,803.13/x
  3. Step 3: Cross multiply
    257,526.31x = 355,379.75 × 142,803.13
  4. Step 4: Simplify right side
    257,526.31x = 50,749,340,041.76
  5. Step 5: Solve for x
    x = 50,749,340,041.76/257,526.31
  6. Step 6: Final answer
    x = 197,064.68

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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.