Home / 285,094.03-393,430.80-154,271.68

Finding the Fourth Proportional to 285,094.03, 393,430.80 and 154,271.68

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Solution

The fourth proportional to 285,094.03, 393,430.80 and 154,271.68 is: 212,895.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,094.03 : 393,430.80 = 154,271.68 : x
  2. Step 2: Convert to fraction form
    285,094.03/393,430.80 = 154,271.68/x
  3. Step 3: Cross multiply
    285,094.03x = 393,430.80 × 154,271.68
  4. Step 4: Simplify right side
    285,094.03x = 60,695,227,741.23
  5. Step 5: Solve for x
    x = 60,695,227,741.23/285,094.03
  6. Step 6: Final answer
    x = 212,895.47

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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.