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Finding the Fourth Proportional to 380,533.53, 525,018.07 and 219,368.04

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Solution

The fourth proportional to 380,533.53, 525,018.07 and 219,368.04 is: 302,659.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,533.53 : 525,018.07 = 219,368.04 : x
  2. Step 2: Convert to fraction form
    380,533.53/525,018.07 = 219,368.04/x
  3. Step 3: Cross multiply
    380,533.53x = 525,018.07 × 219,368.04
  4. Step 4: Simplify right side
    380,533.53x = 115,172,184,980.48
  5. Step 5: Solve for x
    x = 115,172,184,980.48/380,533.53
  6. Step 6: Final answer
    x = 302,659.76

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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.