Home / 278,461.02-384,276.77-151,137.12

Finding the Fourth Proportional to 278,461.02, 384,276.77 and 151,137.12

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Solution

The fourth proportional to 278,461.02, 384,276.77 and 151,137.12 is: 208,569.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,461.02 : 384,276.77 = 151,137.12 : x
  2. Step 2: Convert to fraction form
    278,461.02/384,276.77 = 151,137.12/x
  3. Step 3: Cross multiply
    278,461.02x = 384,276.77 × 151,137.12
  4. Step 4: Simplify right side
    278,461.02x = 58,078,486,402.97
  5. Step 5: Solve for x
    x = 58,078,486,402.97/278,461.02
  6. Step 6: Final answer
    x = 208,569.54

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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.