Home / 215,518.72-297,552-158,831.36

Finding the Fourth Proportional to 215,518.72, 297,552 and 158,831.36

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Solution

The fourth proportional to 215,518.72, 297,552 and 158,831.36 is: 219,287.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,518.72 : 297,552 = 158,831.36 : x
  2. Step 2: Convert to fraction form
    215,518.72/297,552 = 158,831.36/x
  3. Step 3: Cross multiply
    215,518.72x = 297,552 × 158,831.36
  4. Step 4: Simplify right side
    215,518.72x = 47,260,588,830.72
  5. Step 5: Solve for x
    x = 47,260,588,830.72/215,518.72
  6. Step 6: Final answer
    x = 219,287.63

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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.