Home / 315,788.40-436,079.02-202,807.98

Finding the Fourth Proportional to 315,788.40, 436,079.02 and 202,807.98

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Solution

The fourth proportional to 315,788.40, 436,079.02 and 202,807.98 is: 280,061.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,788.40 : 436,079.02 = 202,807.98 : x
  2. Step 2: Convert to fraction form
    315,788.40/436,079.02 = 202,807.98/x
  3. Step 3: Cross multiply
    315,788.40x = 436,079.02 × 202,807.98
  4. Step 4: Simplify right side
    315,788.40x = 88,440,305,166.58
  5. Step 5: Solve for x
    x = 88,440,305,166.58/315,788.40
  6. Step 6: Final answer
    x = 280,061.92

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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.