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Finding the Fourth Proportional to 340,858.98, 470,385.36 and 187,899.72

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Solution

The fourth proportional to 340,858.98, 470,385.36 and 187,899.72 is: 259,301.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,858.98 : 470,385.36 = 187,899.72 : x
  2. Step 2: Convert to fraction form
    340,858.98/470,385.36 = 187,899.72/x
  3. Step 3: Cross multiply
    340,858.98x = 470,385.36 × 187,899.72
  4. Step 4: Simplify right side
    340,858.98x = 88,385,277,436.10
  5. Step 5: Solve for x
    x = 88,385,277,436.10/340,858.98
  6. Step 6: Final answer
    x = 259,301.60

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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.