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Finding the Fourth Proportional to 369,927.80, 555,474.90 and 212,463.80

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Solution

The fourth proportional to 369,927.80, 555,474.90 and 212,463.80 is: 319,030.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,927.80 : 555,474.90 = 212,463.80 : x
  2. Step 2: Convert to fraction form
    369,927.80/555,474.90 = 212,463.80/x
  3. Step 3: Cross multiply
    369,927.80x = 555,474.90 × 212,463.80
  4. Step 4: Simplify right side
    369,927.80x = 118,018,308,058.62
  5. Step 5: Solve for x
    x = 118,018,308,058.62/369,927.80
  6. Step 6: Final answer
    x = 319,030.65

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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.