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Finding the Fourth Proportional to 457,430.67, 631,258.05 and 253,485.03

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Solution

The fourth proportional to 457,430.67, 631,258.05 and 253,485.03 is: 349,811.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,430.67 : 631,258.05 = 253,485.03 : x
  2. Step 2: Convert to fraction form
    457,430.67/631,258.05 = 253,485.03/x
  3. Step 3: Cross multiply
    457,430.67x = 631,258.05 × 253,485.03
  4. Step 4: Simplify right side
    457,430.67x = 160,014,465,741.99
  5. Step 5: Solve for x
    x = 160,014,465,741.99/457,430.67
  6. Step 6: Final answer
    x = 349,811.41

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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.