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Finding the Fourth Proportional to 307,807.59, 424,657.58 and 186,903.03

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Solution

The fourth proportional to 307,807.59, 424,657.58 and 186,903.03 is: 257,855.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,807.59 : 424,657.58 = 186,903.03 : x
  2. Step 2: Convert to fraction form
    307,807.59/424,657.58 = 186,903.03/x
  3. Step 3: Cross multiply
    307,807.59x = 424,657.58 × 186,903.03
  4. Step 4: Simplify right side
    307,807.59x = 79,369,787,479.95
  5. Step 5: Solve for x
    x = 79,369,787,479.95/307,807.59
  6. Step 6: Final answer
    x = 257,855.20

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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.