Home / 430,219.95-644,748.45-163,835.13

Finding the Fourth Proportional to 430,219.95, 644,748.45 and 163,835.13

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Solution

The fourth proportional to 430,219.95, 644,748.45 and 163,835.13 is: 245,531.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,219.95 : 644,748.45 = 163,835.13 : x
  2. Step 2: Convert to fraction form
    430,219.95/644,748.45 = 163,835.13/x
  3. Step 3: Cross multiply
    430,219.95x = 644,748.45 × 163,835.13
  4. Step 4: Simplify right side
    430,219.95x = 105,632,446,123.05
  5. Step 5: Solve for x
    x = 105,632,446,123.05/430,219.95
  6. Step 6: Final answer
    x = 245,531.26

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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.