Home / 282,200.60-389,435.72-153,139.62

Finding the Fourth Proportional to 282,200.60, 389,435.72 and 153,139.62

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Solution

The fourth proportional to 282,200.60, 389,435.72 and 153,139.62 is: 211,332.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,200.60 : 389,435.72 = 153,139.62 : x
  2. Step 2: Convert to fraction form
    282,200.60/389,435.72 = 153,139.62/x
  3. Step 3: Cross multiply
    282,200.60x = 389,435.72 × 153,139.62
  4. Step 4: Simplify right side
    282,200.60x = 59,638,038,175.23
  5. Step 5: Solve for x
    x = 59,638,038,175.23/282,200.60
  6. Step 6: Final answer
    x = 211,332.07

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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.