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Finding the Fourth Proportional to 349,711.40, 524,567.10 and 310,345.40

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Solution

The fourth proportional to 349,711.40, 524,567.10 and 310,345.40 is: 465,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,711.40 : 524,567.10 = 310,345.40 : x
  2. Step 2: Convert to fraction form
    349,711.40/524,567.10 = 310,345.40/x
  3. Step 3: Cross multiply
    349,711.40x = 524,567.10 × 310,345.40
  4. Step 4: Simplify right side
    349,711.40x = 162,796,986,476.34
  5. Step 5: Solve for x
    x = 162,796,986,476.34/349,711.40
  6. Step 6: Final answer
    x = 465,518.10

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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.