Home / 420,903.98-581,038.70-268,151.64

Finding the Fourth Proportional to 420,903.98, 581,038.70 and 268,151.64

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Solution

The fourth proportional to 420,903.98, 581,038.70 and 268,151.64 is: 370,171.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,903.98 : 581,038.70 = 268,151.64 : x
  2. Step 2: Convert to fraction form
    420,903.98/581,038.70 = 268,151.64/x
  3. Step 3: Cross multiply
    420,903.98x = 581,038.70 × 268,151.64
  4. Step 4: Simplify right side
    420,903.98x = 155,806,480,308.47
  5. Step 5: Solve for x
    x = 155,806,480,308.47/420,903.98
  6. Step 6: Final answer
    x = 370,171.08

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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.