Home / 215,177.72-297,007.77-143,557.56

Finding the Fourth Proportional to 215,177.72, 297,007.77 and 143,557.56

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Solution

The fourth proportional to 215,177.72, 297,007.77 and 143,557.56 is: 198,151.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,177.72 : 297,007.77 = 143,557.56 : x
  2. Step 2: Convert to fraction form
    215,177.72/297,007.77 = 143,557.56/x
  3. Step 3: Cross multiply
    215,177.72x = 297,007.77 × 143,557.56
  4. Step 4: Simplify right side
    215,177.72x = 42,637,710,762.24
  5. Step 5: Solve for x
    x = 42,637,710,762.24/215,177.72
  6. Step 6: Final answer
    x = 198,151.15

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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.