Home / 369,475.14-509,875.40-199,709.28

Finding the Fourth Proportional to 369,475.14, 509,875.40 and 199,709.28

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Solution

The fourth proportional to 369,475.14, 509,875.40 and 199,709.28 is: 275,598.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,475.14 : 509,875.40 = 199,709.28 : x
  2. Step 2: Convert to fraction form
    369,475.14/509,875.40 = 199,709.28/x
  3. Step 3: Cross multiply
    369,475.14x = 509,875.40 × 199,709.28
  4. Step 4: Simplify right side
    369,475.14x = 101,826,849,023.71
  5. Step 5: Solve for x
    x = 101,826,849,023.71/369,475.14
  6. Step 6: Final answer
    x = 275,598.65

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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.