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Finding the Fourth Proportional to 357,263.10, 535,394.28 and 268,459.98

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Solution

The fourth proportional to 357,263.10, 535,394.28 and 268,459.98 is: 402,313.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,263.10 : 535,394.28 = 268,459.98 : x
  2. Step 2: Convert to fraction form
    357,263.10/535,394.28 = 268,459.98/x
  3. Step 3: Cross multiply
    357,263.10x = 535,394.28 × 268,459.98
  4. Step 4: Simplify right side
    357,263.10x = 143,731,937,700.91
  5. Step 5: Solve for x
    x = 143,731,937,700.91/357,263.10
  6. Step 6: Final answer
    x = 402,313.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.