Home / 292,366.20-438,722.10-213,281.40

Finding the Fourth Proportional to 292,366.20, 438,722.10 and 213,281.40

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Solution

The fourth proportional to 292,366.20, 438,722.10 and 213,281.40 is: 320,048.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,366.20 : 438,722.10 = 213,281.40 : x
  2. Step 2: Convert to fraction form
    292,366.20/438,722.10 = 213,281.40/x
  3. Step 3: Cross multiply
    292,366.20x = 438,722.10 × 213,281.40
  4. Step 4: Simplify right side
    292,366.20x = 93,571,263,698.94
  5. Step 5: Solve for x
    x = 93,571,263,698.94/292,366.20
  6. Step 6: Final answer
    x = 320,048.16

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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.