Home / 288,826.40-398,549.76-159,744.36

Finding the Fourth Proportional to 288,826.40, 398,549.76 and 159,744.36

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Solution

The fourth proportional to 288,826.40, 398,549.76 and 159,744.36 is: 220,430.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,826.40 : 398,549.76 = 159,744.36 : x
  2. Step 2: Convert to fraction form
    288,826.40/398,549.76 = 159,744.36/x
  3. Step 3: Cross multiply
    288,826.40x = 398,549.76 × 159,744.36
  4. Step 4: Simplify right side
    288,826.40x = 63,666,076,339.35
  5. Step 5: Solve for x
    x = 63,666,076,339.35/288,826.40
  6. Step 6: Final answer
    x = 220,430.25

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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.