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Finding the Fourth Proportional to 421,661.41, 581,897.34 and 230,670.70

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Solution

The fourth proportional to 421,661.41, 581,897.34 and 230,670.70 is: 318,328.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,661.41 : 581,897.34 = 230,670.70 : x
  2. Step 2: Convert to fraction form
    421,661.41/581,897.34 = 230,670.70/x
  3. Step 3: Cross multiply
    421,661.41x = 581,897.34 × 230,670.70
  4. Step 4: Simplify right side
    421,661.41x = 134,226,665,291.20
  5. Step 5: Solve for x
    x = 134,226,665,291.20/421,661.41
  6. Step 6: Final answer
    x = 318,328.08

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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.