Home / 280,925.75-387,677.67-153,602.39

Finding the Fourth Proportional to 280,925.75, 387,677.67 and 153,602.39

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Solution

The fourth proportional to 280,925.75, 387,677.67 and 153,602.39 is: 211,971.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,925.75 : 387,677.67 = 153,602.39 : x
  2. Step 2: Convert to fraction form
    280,925.75/387,677.67 = 153,602.39/x
  3. Step 3: Cross multiply
    280,925.75x = 387,677.67 × 153,602.39
  4. Step 4: Simplify right side
    280,925.75x = 59,548,216,661.63
  5. Step 5: Solve for x
    x = 59,548,216,661.63/280,925.75
  6. Step 6: Final answer
    x = 211,971.37

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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.