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Finding the Fourth Proportional to 468,360, 646,160.40 and 307,303.92

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Solution

The fourth proportional to 468,360, 646,160.40 and 307,303.92 is: 423,963.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,360 : 646,160.40 = 307,303.92 : x
  2. Step 2: Convert to fraction form
    468,360/646,160.40 = 307,303.92/x
  3. Step 3: Cross multiply
    468,360x = 646,160.40 × 307,303.92
  4. Step 4: Simplify right side
    468,360x = 198,567,623,868.77
  5. Step 5: Solve for x
    x = 198,567,623,868.77/468,360
  6. Step 6: Final answer
    x = 423,963.67

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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.