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Finding the Fourth Proportional to 356,907.80, 534,908.10 and 146,307.80

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Solution

The fourth proportional to 356,907.80, 534,908.10 and 146,307.80 is: 219,275.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,907.80 : 534,908.10 = 146,307.80 : x
  2. Step 2: Convert to fraction form
    356,907.80/534,908.10 = 146,307.80/x
  3. Step 3: Cross multiply
    356,907.80x = 534,908.10 × 146,307.80
  4. Step 4: Simplify right side
    356,907.80x = 78,261,227,313.18
  5. Step 5: Solve for x
    x = 78,261,227,313.18/356,907.80
  6. Step 6: Final answer
    x = 219,275.76

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1.5x scale

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.