Home / 342,312.12-513,589.80-152,755.23

Finding the Fourth Proportional to 342,312.12, 513,589.80 and 152,755.23

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Solution

The fourth proportional to 342,312.12, 513,589.80 and 152,755.23 is: 229,187.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,312.12 : 513,589.80 = 152,755.23 : x
  2. Step 2: Convert to fraction form
    342,312.12/513,589.80 = 152,755.23/x
  3. Step 3: Cross multiply
    342,312.12x = 513,589.80 × 152,755.23
  4. Step 4: Simplify right side
    342,312.12x = 78,453,528,024.65
  5. Step 5: Solve for x
    x = 78,453,528,024.65/342,312.12
  6. Step 6: Final answer
    x = 229,187.12

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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.