Home / 380,730.17-525,341.04-217,312.07

Finding the Fourth Proportional to 380,730.17, 525,341.04 and 217,312.07

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Solution

The fourth proportional to 380,730.17, 525,341.04 and 217,312.07 is: 299,852.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,730.17 : 525,341.04 = 217,312.07 : x
  2. Step 2: Convert to fraction form
    380,730.17/525,341.04 = 217,312.07/x
  3. Step 3: Cross multiply
    380,730.17x = 525,341.04 × 217,312.07
  4. Step 4: Simplify right side
    380,730.17x = 114,162,946,231.65
  5. Step 5: Solve for x
    x = 114,162,946,231.65/380,730.17
  6. Step 6: Final answer
    x = 299,852.64

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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.