Home / 282,519.42-389,881.51-153,458.15

Finding the Fourth Proportional to 282,519.42, 389,881.51 and 153,458.15

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Solution

The fourth proportional to 282,519.42, 389,881.51 and 153,458.15 is: 211,774.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,519.42 : 389,881.51 = 153,458.15 : x
  2. Step 2: Convert to fraction form
    282,519.42/389,881.51 = 153,458.15/x
  3. Step 3: Cross multiply
    282,519.42x = 389,881.51 × 153,458.15
  4. Step 4: Simplify right side
    282,519.42x = 59,830,492,910.75
  5. Step 5: Solve for x
    x = 59,830,492,910.75/282,519.42
  6. Step 6: Final answer
    x = 211,774.80

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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.