Home / 289,208.10-434,330.55-210,411.30

Finding the Fourth Proportional to 289,208.10, 434,330.55 and 210,411.30

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Solution

The fourth proportional to 289,208.10, 434,330.55 and 210,411.30 is: 315,994.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,208.10 : 434,330.55 = 210,411.30 : x
  2. Step 2: Convert to fraction form
    289,208.10/434,330.55 = 210,411.30/x
  3. Step 3: Cross multiply
    289,208.10x = 434,330.55 × 210,411.30
  4. Step 4: Simplify right side
    289,208.10x = 91,388,055,655.22
  5. Step 5: Solve for x
    x = 91,388,055,655.22/289,208.10
  6. Step 6: Final answer
    x = 315,994.11

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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.