Home / 278,460.16-384,275.40-151,135.77

Finding the Fourth Proportional to 278,460.16, 384,275.40 and 151,135.77

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Solution

The fourth proportional to 278,460.16, 384,275.40 and 151,135.77 is: 208,567.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,460.16 : 384,275.40 = 151,135.77 : x
  2. Step 2: Convert to fraction form
    278,460.16/384,275.40 = 151,135.77/x
  3. Step 3: Cross multiply
    278,460.16x = 384,275.40 × 151,135.77
  4. Step 4: Simplify right side
    278,460.16x = 58,077,758,471.06
  5. Step 5: Solve for x
    x = 58,077,758,471.06/278,460.16
  6. Step 6: Final answer
    x = 208,567.57

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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.