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Finding the Fourth Proportional to 268,430.67, 370,429.41 and 147,570.87

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Solution

The fourth proportional to 268,430.67, 370,429.41 and 147,570.87 is: 203,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,430.67 : 370,429.41 = 147,570.87 : x
  2. Step 2: Convert to fraction form
    268,430.67/370,429.41 = 147,570.87/x
  3. Step 3: Cross multiply
    268,430.67x = 370,429.41 × 147,570.87
  4. Step 4: Simplify right side
    268,430.67x = 54,664,590,307.29
  5. Step 5: Solve for x
    x = 54,664,590,307.29/268,430.67
  6. Step 6: Final answer
    x = 203,645.10

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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.