Home / 429,143.77-592,157.89-257,021.40

Finding the Fourth Proportional to 429,143.77, 592,157.89 and 257,021.40

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Solution

The fourth proportional to 429,143.77, 592,157.89 and 257,021.40 is: 354,653.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,143.77 : 592,157.89 = 257,021.40 : x
  2. Step 2: Convert to fraction form
    429,143.77/592,157.89 = 257,021.40/x
  3. Step 3: Cross multiply
    429,143.77x = 592,157.89 × 257,021.40
  4. Step 4: Simplify right side
    429,143.77x = 152,197,252,450.72
  5. Step 5: Solve for x
    x = 152,197,252,450.72/429,143.77
  6. Step 6: Final answer
    x = 354,653.29

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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.