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Finding the Fourth Proportional to 389,663.93, 537,825.88 and 228,570.88

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Solution

The fourth proportional to 389,663.93, 537,825.88 and 228,570.88 is: 315,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,663.93 : 537,825.88 = 228,570.88 : x
  2. Step 2: Convert to fraction form
    389,663.93/537,825.88 = 228,570.88/x
  3. Step 3: Cross multiply
    389,663.93x = 537,825.88 × 228,570.88
  4. Step 4: Simplify right side
    389,663.93x = 122,931,333,342.24
  5. Step 5: Solve for x
    x = 122,931,333,342.24/389,663.93
  6. Step 6: Final answer
    x = 315,480.40

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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.