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Finding the Fourth Proportional to 369,848.70, 553,995.45 and 307,640.70

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Solution

The fourth proportional to 369,848.70, 553,995.45 and 307,640.70 is: 460,814.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,848.70 : 553,995.45 = 307,640.70 : x
  2. Step 2: Convert to fraction form
    369,848.70/553,995.45 = 307,640.70/x
  3. Step 3: Cross multiply
    369,848.70x = 553,995.45 × 307,640.70
  4. Step 4: Simplify right side
    369,848.70x = 170,431,548,034.82
  5. Step 5: Solve for x
    x = 170,431,548,034.82/369,848.70
  6. Step 6: Final answer
    x = 460,814.24

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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.