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Finding the Fourth Proportional to 457,007.80, 630,663.02 and 253,054.32

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Solution

The fourth proportional to 457,007.80, 630,663.02 and 253,054.32 is: 349,210.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,007.80 : 630,663.02 = 253,054.32 : x
  2. Step 2: Convert to fraction form
    457,007.80/630,663.02 = 253,054.32/x
  3. Step 3: Cross multiply
    457,007.80x = 630,663.02 × 253,054.32
  4. Step 4: Simplify right side
    457,007.80x = 159,592,001,675.25
  5. Step 5: Solve for x
    x = 159,592,001,675.25/457,007.80
  6. Step 6: Final answer
    x = 349,210.67

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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.