Home / 288,453.02-398,056.79-159,389.45

Finding the Fourth Proportional to 288,453.02, 398,056.79 and 159,389.45

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Solution

The fourth proportional to 288,453.02, 398,056.79 and 159,389.45 is: 219,952.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,453.02 : 398,056.79 = 159,389.45 : x
  2. Step 2: Convert to fraction form
    288,453.02/398,056.79 = 159,389.45/x
  3. Step 3: Cross multiply
    288,453.02x = 398,056.79 × 159,389.45
  4. Step 4: Simplify right side
    288,453.02x = 63,446,051,235.06
  5. Step 5: Solve for x
    x = 63,446,051,235.06/288,453.02
  6. Step 6: Final answer
    x = 219,952.80

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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.