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Finding the Fourth Proportional to 342,980.91, 473,275.35 and 189,981.15

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Solution

The fourth proportional to 342,980.91, 473,275.35 and 189,981.15 is: 262,152.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,980.91 : 473,275.35 = 189,981.15 : x
  2. Step 2: Convert to fraction form
    342,980.91/473,275.35 = 189,981.15/x
  3. Step 3: Cross multiply
    342,980.91x = 473,275.35 × 189,981.15
  4. Step 4: Simplify right side
    342,980.91x = 89,913,395,259.65
  5. Step 5: Solve for x
    x = 89,913,395,259.65/342,980.91
  6. Step 6: Final answer
    x = 262,152.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.