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Finding the Fourth Proportional to 548,981.82, 757,422.21 and 307,225.98

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Solution

The fourth proportional to 548,981.82, 757,422.21 and 307,225.98 is: 423,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,981.82 : 757,422.21 = 307,225.98 : x
  2. Step 2: Convert to fraction form
    548,981.82/757,422.21 = 307,225.98/x
  3. Step 3: Cross multiply
    548,981.82x = 757,422.21 × 307,225.98
  4. Step 4: Simplify right side
    548,981.82x = 232,699,776,953.91
  5. Step 5: Solve for x
    x = 232,699,776,953.91/548,981.82
  6. Step 6: Final answer
    x = 423,875.20

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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.