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Finding the Fourth Proportional to 421,632.72, 581,852.96 and 230,646.06

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Solution

The fourth proportional to 421,632.72, 581,852.96 and 230,646.06 is: 318,291.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,632.72 : 581,852.96 = 230,646.06 : x
  2. Step 2: Convert to fraction form
    421,632.72/581,852.96 = 230,646.06/x
  3. Step 3: Cross multiply
    421,632.72x = 581,852.96 × 230,646.06
  4. Step 4: Simplify right side
    421,632.72x = 134,202,095,914.36
  5. Step 5: Solve for x
    x = 134,202,095,914.36/421,632.72
  6. Step 6: Final answer
    x = 318,291.46

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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.