Home / 278,445.52-384,255.01-151,121.12

Finding the Fourth Proportional to 278,445.52, 384,255.01 and 151,121.12

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Solution

The fourth proportional to 278,445.52, 384,255.01 and 151,121.12 is: 208,547.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,445.52 : 384,255.01 = 151,121.12 : x
  2. Step 2: Convert to fraction form
    278,445.52/384,255.01 = 151,121.12/x
  3. Step 3: Cross multiply
    278,445.52x = 384,255.01 × 151,121.12
  4. Step 4: Simplify right side
    278,445.52x = 58,069,047,250.18
  5. Step 5: Solve for x
    x = 58,069,047,250.18/278,445.52
  6. Step 6: Final answer
    x = 208,547.25

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1.5x scale

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.