Home / 369,151.02-509,428.85-199,385.15

Finding the Fourth Proportional to 369,151.02, 509,428.85 and 199,385.15

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Solution

The fourth proportional to 369,151.02, 509,428.85 and 199,385.15 is: 275,151.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,151.02 : 509,428.85 = 199,385.15 : x
  2. Step 2: Convert to fraction form
    369,151.02/509,428.85 = 199,385.15/x
  3. Step 3: Cross multiply
    369,151.02x = 509,428.85 × 199,385.15
  4. Step 4: Simplify right side
    369,151.02x = 101,572,544,127.51
  5. Step 5: Solve for x
    x = 101,572,544,127.51/369,151.02
  6. Step 6: Final answer
    x = 275,151.74

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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.