Home / 280,135.67-386,590.02-152,813.93

Finding the Fourth Proportional to 280,135.67, 386,590.02 and 152,813.93

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Solution

The fourth proportional to 280,135.67, 386,590.02 and 152,813.93 is: 210,884.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,135.67 : 386,590.02 = 152,813.93 : x
  2. Step 2: Convert to fraction form
    280,135.67/386,590.02 = 152,813.93/x
  3. Step 3: Cross multiply
    280,135.67x = 386,590.02 × 152,813.93
  4. Step 4: Simplify right side
    280,135.67x = 59,076,340,254.98
  5. Step 5: Solve for x
    x = 59,076,340,254.98/280,135.67
  6. Step 6: Final answer
    x = 210,884.75

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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.