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Finding the Fourth Proportional to 612,292.32, 918,421.50 and 163,017.06

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Solution

The fourth proportional to 612,292.32, 918,421.50 and 163,017.06 is: 244,521.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,292.32 : 918,421.50 = 163,017.06 : x
  2. Step 2: Convert to fraction form
    612,292.32/918,421.50 = 163,017.06/x
  3. Step 3: Cross multiply
    612,292.32x = 918,421.50 × 163,017.06
  4. Step 4: Simplify right side
    612,292.32x = 149,718,372,770.79
  5. Step 5: Solve for x
    x = 149,718,372,770.79/612,292.32
  6. Step 6: Final answer
    x = 244,521.07

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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.