Home / 340,386.42-469,729.26-187,421.40

Finding the Fourth Proportional to 340,386.42, 469,729.26 and 187,421.40

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Solution

The fourth proportional to 340,386.42, 469,729.26 and 187,421.40 is: 258,639.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,386.42 : 469,729.26 = 187,421.40 : x
  2. Step 2: Convert to fraction form
    340,386.42/469,729.26 = 187,421.40/x
  3. Step 3: Cross multiply
    340,386.42x = 469,729.26 × 187,421.40
  4. Step 4: Simplify right side
    340,386.42x = 88,037,315,530.16
  5. Step 5: Solve for x
    x = 88,037,315,530.16/340,386.42
  6. Step 6: Final answer
    x = 258,639.33

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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.