Home / 288,036.90-397,487.52-158,976.36

Finding the Fourth Proportional to 288,036.90, 397,487.52 and 158,976.36

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Solution

The fourth proportional to 288,036.90, 397,487.52 and 158,976.36 is: 219,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,036.90 : 397,487.52 = 158,976.36 : x
  2. Step 2: Convert to fraction form
    288,036.90/397,487.52 = 158,976.36/x
  3. Step 3: Cross multiply
    288,036.90x = 397,487.52 × 158,976.36
  4. Step 4: Simplify right side
    288,036.90x = 63,191,119,075.03
  5. Step 5: Solve for x
    x = 63,191,119,075.03/288,036.90
  6. Step 6: Final answer
    x = 219,385.50

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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.