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Finding the Fourth Proportional to 545,437.80, 818,094.06 and 208,470.96

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Solution

The fourth proportional to 545,437.80, 818,094.06 and 208,470.96 is: 312,682.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,437.80 : 818,094.06 = 208,470.96 : x
  2. Step 2: Convert to fraction form
    545,437.80/818,094.06 = 208,470.96/x
  3. Step 3: Cross multiply
    545,437.80x = 818,094.06 × 208,470.96
  4. Step 4: Simplify right side
    545,437.80x = 170,548,854,058.50
  5. Step 5: Solve for x
    x = 170,548,854,058.50/545,437.80
  6. Step 6: Final answer
    x = 312,682.50

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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.