Home / 351,011.40-524,981.10-313,840.20

Finding the Fourth Proportional to 351,011.40, 524,981.10 and 313,840.20

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Solution

The fourth proportional to 351,011.40, 524,981.10 and 313,840.20 is: 469,386.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,011.40 : 524,981.10 = 313,840.20 : x
  2. Step 2: Convert to fraction form
    351,011.40/524,981.10 = 313,840.20/x
  3. Step 3: Cross multiply
    351,011.40x = 524,981.10 × 313,840.20
  4. Step 4: Simplify right side
    351,011.40x = 164,760,173,420.22
  5. Step 5: Solve for x
    x = 164,760,173,420.22/351,011.40
  6. Step 6: Final answer
    x = 469,386.96

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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.