Home / 283,455.02-391,168.47-154,393.10

Finding the Fourth Proportional to 283,455.02, 391,168.47 and 154,393.10

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Solution

The fourth proportional to 283,455.02, 391,168.47 and 154,393.10 is: 213,062.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,455.02 : 391,168.47 = 154,393.10 : x
  2. Step 2: Convert to fraction form
    283,455.02/391,168.47 = 154,393.10/x
  3. Step 3: Cross multiply
    283,455.02x = 391,168.47 × 154,393.10
  4. Step 4: Simplify right side
    283,455.02x = 60,393,710,749.71
  5. Step 5: Solve for x
    x = 60,393,710,749.71/283,455.02
  6. Step 6: Final answer
    x = 213,062.77

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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.