Home / 292,012.48-438,033.07-142,380.67

Finding the Fourth Proportional to 292,012.48, 438,033.07 and 142,380.67

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Solution

The fourth proportional to 292,012.48, 438,033.07 and 142,380.67 is: 213,578.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,012.48 : 438,033.07 = 142,380.67 : x
  2. Step 2: Convert to fraction form
    292,012.48/438,033.07 = 142,380.67/x
  3. Step 3: Cross multiply
    292,012.48x = 438,033.07 × 142,380.67
  4. Step 4: Simplify right side
    292,012.48x = 62,367,441,988.76
  5. Step 5: Solve for x
    x = 62,367,441,988.76/292,012.48
  6. Step 6: Final answer
    x = 213,578.00

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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.