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Finding the Fourth Proportional to 310,430.30, 465,645.45 and 286,810.70

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Solution

The fourth proportional to 310,430.30, 465,645.45 and 286,810.70 is: 430,216.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,430.30 : 465,645.45 = 286,810.70 : x
  2. Step 2: Convert to fraction form
    310,430.30/465,645.45 = 286,810.70/x
  3. Step 3: Cross multiply
    310,430.30x = 465,645.45 × 286,810.70
  4. Step 4: Simplify right side
    310,430.30x = 133,552,097,466.32
  5. Step 5: Solve for x
    x = 133,552,097,466.32/310,430.30
  6. Step 6: Final answer
    x = 430,216.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.